Vibration Speaker Display Panel Integration
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Solution Overview
Problem
Existing electromagnetism speakers used in cellular phones have complex inner structures, which complicate their design and functionality, particularly in generating both sound and vibration.
Innovation Solution
A vibration speaker design featuring a panel with a piezoelectric or electromagnetic vibrator attached to a diaphragm, utilizing a cover and sealing ring to create a receiving space, and an optional elastic member for supporting the panel, allowing for simplified structure and effective sound generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electromagnetism speaker with voice coil, magnetic circuit unit, and elastic member is used to generate sound and vibration, then sound quality and vibration functionality are achieved, but device complexity increases due to complicated inner structure
Solution Approach 1:
The patent merges the speaker function with the display screen by integrating a vibrator directly onto the display panel. The display screen serves dual purposes: as a visual display and as a sound generation surface. This eliminates the need for separate speaker components (voice coil, magnetic circuit unit, elastic member) while achieving both sound and vibration functionality through the unified display-vibrator structure.
Solution Approach 2:
The display screen is designed to perform multiple functions simultaneously: visual display, sound generation, and vibration generation. By making the display panel itself the vibrating element, the system achieves multi-functionality without adding separate components, thereby reducing overall device complexity while maintaining adaptability for both audio and haptic feedback.
2Device complexity
If a simple speaker structure is used to reduce device complexity, then manufacturing and design are simplified, but sound quality and vibration efficiency deteriorate
Solution Approach 1:
The patent applies local quality by optimizing specific regions of the display panel for vibration generation. The vibrator is positioned at specific locations on the display panel where it can most effectively generate sound and vibration. The display panel itself is designed with specific mechanical properties in different regions to enhance vibration transmission while maintaining overall structural integrity, thus achieving good sound quality with a simple integrated structure.
Solution Approach 2:
The patent replaces the traditional electromagnetic speaker mechanism (voice coil, magnetic circuit) with a direct vibration generation system attached to the display panel. This mechanical substitution simplifies the structure by eliminating complex electromagnetic components while maintaining effective sound and vibration generation through the display panel's own structural properties and direct vibrator attachment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The speaker achieves improved sound quality and vibration functionality with a simpler structure, enabling better frequency response and vibration efficiency as input voltage increases, providing a new option for manufacturers and users.
Implementation Method 1
A vibration speaker design featuring a panel with a piezoelectric or electromagnetic vibrator attached to a diaphragm
Implementation Method 2
A vibration speaker design featuring a panel with a piezoelectric or electromagnetic vibrator attached to a diaphragm
Implementation Method 3
an optional elastic member for supporting the panel, allowing for simplified structure and effective sound generation
Data Source
AI summary
A vibration speaker is disclosed. The vibration speaker includes: a display screen including a first surface and a second surface opposite to the first surface; a vibrator disposed below the display screen with vibration direction perpendicular to the display screen; a cover including a lower cover and an upper cover assembled with the lower cover for forming a receiving space to receive the display screen and the vibrator; an elastic member comprising an inner end attached to the display screen, an outer end disposed between the lower cover and the upper cover, and a connecting part disposed between the inner end and the outer end and concaved towards the lower cover; wherein the display screen is actuated to vibrate and generate sound by the vibration of the vibrator.